Motor railway-truck.



No. 869,456. PATENTED OCT. 29, 1907. S. OTIS.

MOTOR RAILWAY TRUCK.

APPLIUATION FILED NOV. 7, 1906.

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PATENTED OCT. 29. 1907.

S. OTIS. MOTOR RAILWAY TRUCK.

APPLIUATION FILED NOV. 7. 1906.

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PATENT OFFIC SPENCER OTIS, OF CHICAGO, ILLINOIS.

MOTOR RAILWAY-TRUCK.

Specification of Letters Patent.

Patented Oct. 29, 1907.

Application filed November '7, 1906. Serial No. 342.376.

To all whom it may concern:

Be it known that I, Srnxenn O'ris, a citizen of the United States,residing at Chicago, in the county of Cook and State oi Illinois, haveinvented certain new and useful Improvements in Motor Rail\vay-'lrm-ks,of which the following is a spccitication.

My invention relates to motor railway trucks; and has for its object toprovide a truck in which the main driving motor may be operatedcontinually in the same direction of rotation, while the drive wheels ofthe truck may have their direction 01' rotat ion rcvcrsml.

Other objects oi my invention are the provision ol' simple and durablemechanism tor carrying out the above purpose, and such as may beeconomical ol' manulacturc and simple to assemble.

i\ly invention is illustrated in the accompairving drawings, in which-Figure 1. a plan view as applied to a tour-wheel a section ou the line1! of railroad truck; and l ig. 2 Fig. l.

Referring to the drawings. i show the wheels (I and I) connected bymeans ol' the crank rods 0, these rods being connected to crank pins aand b in such manner that the wheels upon one axle may not be rotatedwithout the wheels upon the other axle following in the same directionof rotation. By so connecting the wheels both the pins and wheels becomedrivers. as will be readily understood.

Upon the axle dot the wheels (L i provide the loose bevel gear wheel e.held in position by collars secured to the shaft, one of which is shownasf. Upon the axle (1 connecting wheels I), I similarly provide the gear0 and collar-f. The shalt 5 is provided at one end with the bevel gearwheel h and at the other .cnd with the bevel gear wheel lt meshing,respectively, with gears e and c, and is provided at its middle pointwith the comparatively large gear 'i which is driven by means of theworm by any suitable source I; through the shalt 1. Upon each of theaxles and d i also provide slidable clutch blocks in and m keyed to theshalt by keys at and n in such manner that the clutch blocks may be slidalong the. shaft but cannot rotate thcrcon. These clutch blocks areprovided with teeth o aml 0 adapted to mesh between the teeth 1 and pupon the hubs ol' the loose gears a and v. The clutch block at is throwninto and out of registry with the teeth ol' gear 0 by means ol' thelever q, which is pivoted at rand may be operated by any desired means,which may be ai-- tached at the points. The lever is secured a t. oneend to the clutch block or and at the other end to the clutch block m insuch manner that the clutch blocks are free to rotate within theportions t and Fwhich cncirl cle a portion ol' the clutch blocks m andIn and prelcrably engage rings which are rotatable in slots in theclutch blocks. The lever t is pivoted at a in such man nor that when theclutch block in is moved into engagement. with the teeth of gear 0 theclutch-block in will simultaneously be moved out of engagement with theteeth of gear c.

it will be observed that by this arrangement the simple movement ol thelever q will move one of the clutch blocks into and the other out otengagement with the loose gears and thereby, inasmuch as these gears arerotated in opposite directions by the prime mover 7;, will reverse thedirection ol rotation of the ar wheels (I and I). The prime mover may bea motor of any preferred type, such as a turbine or electric motor.-

lt is to be understood that while I have herein shown and described myinvention with relation to certain details, that .i do not wish to beunduly limited thereto, many substitutions being possible withoutdeparting l'rom the spirit or scope ol' my invention.

l claim:

1. in a railway car truck. the combination of a pair of axles. whcclssecured to the axles, driving rods connecting the whccls. a loose gearon each of the axles, means engaging the gears for rotating them inopposite directions, a clutch member secured to each axle to rotatetherewith and longitudinally movable on the axles, and means for movingthe clutch blocks to throw them into and out 01 en gagcmcnt with thegears.

L. in a railway car truck. the combination ot' a pair of parallel axles.wheels secured thereto, a driving rod connccting the wheels. a loosegear on each axle, a prime mover, means for rotating the gears inopposite directions thereby. and means to secure either of said gears toits axlc whereby the truck may be run in either direction using all itswheels as traction wheels.

1;. in a truck. the combination of a pair of axles, drive wheels securedto such axles, crank pins on the drive wheels, a driving rod connectedbetween the crank pins, a loose gear on each of the axles, meansengaging the gears for rotating them in opposite directions, a clutchblock sccured to cach axle to rotate therewith and adjacent the loosegcars and longitudinally slidahlc on such axles, a lover connecting saidblocks and pivoted between them, and means for operating the leverwhereby either of the clutch blocks may be rotatively secured to itsloose gear and the other simultaneously released from its loose gearwhereby the truck may be driven in either direction.

l. in a truck, the coii1l iiiation ot a pair olf axles, drive wheelssecured to such axles, crank pins on the drive,

wheels. :1 driving rod between the crank pins, a loose bevel scar oneach of the axles. a shaft mounted at right angles to car-h ol' theaxles and cari ing a beveled gear at each end engaging with such loose ga prime mover for retating the shaft in one direction, a clutch blockrotatively secured to rich axle and longitudinally slidable into and outof mesh with notches upon the loose gears, a lover connecting the clutchblocks and pivoted between them, and means for operating the leverwhereby either of the clutch blocks may be slid into mesh with its loosegear and the other simultaneously slid out of mesh with its loose gearwhereby the truck may be driven in either direction.

